Invention Grant
- Patent Title: Method for time synchronization of devices in a control network
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Application No.: US15539606Application Date: 2015-12-24
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Publication No.: US10097299B2Publication Date: 2018-10-09
- Inventor: Anitha Varghese , Mallikarjun Kande , Pradnya Gaonkar
- Applicant: ABB Schweiz AG
- Applicant Address: CH Baden
- Assignee: ABB Schweiz AG
- Current Assignee: ABB Schweiz AG
- Current Assignee Address: CH Baden
- Agency: Barnes & Thornburg LLP
- Priority: IN6546/CHE/2014 20141224
- International Application: PCT/IB2015/059973 WO 20151224
- International Announcement: WO2016/103227 WO 20160630
- Main IPC: H04J3/06
- IPC: H04J3/06 ; G05B19/418

Abstract:
The present invention provides a method for time synchronizing one or more devices in a control network using a first device. The method comprises selecting a first device from information of the topology of the control network. The method further comprises sending a first set of packets to the second device, receiving a first set of delay requests in response to the first set of packets, and sending a first set of delay responses in response to the first set of delay requests. The method further comprises, determining a first set of forward times and first set of backward times. The method further comprises, determining a first minimum forward time and a first minimum backward time. Further the method comprises determining a first correction factor. The method also comprises, applying the first correction factor to a clock provided at the second device and storing the first correction factor.
Public/Granted literature
- US20180013507A1 A METHOD FOR TIME SYNCHRONIZATION OF DEVICES IN A CONTROL NETWORK Public/Granted day:2018-01-11
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